Disclosed are dental adhesive compositions consisting essentially of
(a) at least one urethane prepolymer containing one or more isocyanate groups, or a blend of the urethane prepolymer and an inert diluent;
(b) at least one radical-polymerizable unsaturated monomer;
(c) a photopolymerization initiator; and, if desired,
(d) a polymerizable phosphoric ester compound having a specific structure.
These dental adhesive compositions can be used to bond a restorative material to dentin without requiring any troublesome pretreatment with an etching agent such as phosphoric acid, and can exhibit bonding power sufficient for practical purposes.
所公开的牙科粘合剂组合物主要包括
(a) 至少一种含有一个或多个
异氰酸酯基团的聚
氨酯预聚物,或聚
氨酯预聚 物与惰性稀释剂的混合物;
(b) 至少一种可自由基聚合的不饱和单体;
(c) 光聚合
引发剂;以及(如需要
(d) 具有特定结构的可聚合
磷酸酯化合物。
这些牙科粘合剂组合物可用于将修复材料粘合到牙本质上,而无需使用
磷酸等腐蚀剂进行任何麻烦的预处理,并可显示出足以满足实际用途的粘合力。